/**
 * Copyright 2025 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { z } from 'genkit';
import { ai } from '.';

export const tellJoke = ai.defineFlow(
  {
    name: 'tellJoke',
    inputSchema: z.string().nullable(),
    outputSchema: z.string(),
    streamSchema: z.string(),
  },
  async (type: string | null, { sendChunk }) => {
    const { response, stream } = ai.generateStream(
      `Tell me a ${type || 'dad'} joke`
    );
    for await (const chunk of stream) {
      sendChunk(chunk.text);
    }
    return (await response).text;
  }
);
